<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<---同级目录--->
<img src="img.png" alt="这是个图片" width="200" height="200">
<---上级目录--->
<img src="../mg.png" alt="Gg" width="50%" height="50%">
<---下级目录--->
<img src="adc/g.png" alt="">

<img src="" alt="">


</body>
</html>